Evaluation of the Anticonvulsant Activity of Terpinen-4-ol
2014
Sousa, Damião P de | Nóbrega, Franklin F. F. | Morais, Liana C. S. L de | Almeida, Reinaldo N de
Terpinen-4-ol is a monoterpenoid alcohol and component of the essential oils of several aromatic plants. Similarly to terpinen-4-ol, other monoterpenoid alcohols have shown anticonvulsant activity in convulsion animal models. The present study aimed to investigate the anticonvulsant activity of terpinen-4-ol. Treatment of mice with terpinen-4-ol (200 mg/kg) caused a signifi cant decrease in the spontaneous motor activity at 30, 60 and 120 min after administration. Terpinen-4-ol (100 and 200 mg/kg) produced a significant dosedependent increase in the duration of sleeping in mice. Pretreatment of mice with terpinen-4- ol at doses of 100, 200 and 300 mg/kg significantly increased the latency of pentylenetetrazole -induced convulsions. Terpinen-4-ol (200 and 300 mg/kg) also inhibited the induced seizures of picrotoxin. In another model, maximal electroshock seizure, terpinen-4-ol decreased the tonic hind convulsions percentage at the dose of 300 mg/kg. From the overall results we can conclude that terpinen-4-ol showed a depressant effect on the central nervous system and significant anticonvulsant activity.
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